Axle Code

Fig 1: Identifying Axle Codes

Courtesy of FORD MOTOR CO.

The following lists the gear ratios on axles.

• 86 - 3.73 non-limited slip (7.5-inch)
• 87 - 4.10 non-limited slip (7.5-inch)
• 95 - 3.55 non-limited slip (8.8-inch)
• 96 - 3.73 non-limited slip (8.8-inch)
• 97 - 4.10 non-limited slip (8.8-inch)
• F6 - 3.73 limited slip (7.5-inch)
• R5 - 3.55 limited slip (8.8-inch)
• R6 - 3.73 limited slip (8.8-inch)
• R7 - 4.10 limited slip (8.8-inch)